Author(s): Xudong Zhang; Takeshi Katsumi
Linked Author(s): Xudong Zhang
Keywords: Hydraulic structure Piping Clogging Fine particle erosion Hydraulic gradient
Abstract: Internal erosion of hydraulic structure, such as dam piping, has attracted much attention in geotechnical engineering. Since the occurrence of the internal erosion generally accompanied with the gap-graded soil, the fine particles can easily move among the coarse grain under hydraulic disturbances. In our study, we mainly investigate the movement characteristic of the fine particle in pore aiming to the internal erosion phenomenon. Based on the Lattice Boltzmann Method (LBM) coupled with Discrete Element Method (DEM), the fine particles’ flow in pore was simulated under the effect of vertical pressure and hydraulic gradient. The whole process is dynamic. The clog mainly concentrates in the inlet of porous media. The formation of clog will influence the transportation of hydraulic gradient.
Year: 2025